药物信息为Neomycin and Polymyxin B Sulfates, Bacitracin Zinc and Hydrocortisone Ophthalmic Ointment USP (Bausch & Lomb Incorporated): DESCRIPTION

Neomycin and Polymyxin B Sulfates, Bacitracin Zinc and Hydrocortisone Ophthalmic Ointment, USP is a sterile antimicrobial and anti-inflammatory ointment for ophthalmic use.

Each Gram Contains: ACTIVES: Neomycin sulfate (equivalent to 3.5 mg neomycin base), Polymyxin B Sulfate equivalent to 10,000 polymyxin B units, Bacitracin Zinc equivalent to 400 bacitracin units, Hydrocortisone 10 mg (1%); INACTIVES: White Petrolatum, Mineral Oil.

Neomycin sulfate is the sulfate salt of neomycin B and C, which are produced by the growth of Streptomyces fradiae Waksman (Fam. Streptomycetaceae). It has a potency equivalent of not less than 600 mcg of neomycin standard per mg, calculated on an anhydrous basis.

The structural formulae are:

Polymyxin B sulfate is the sulfate salt of polymyxin B₁ and B₂, which are produced by the growth of Bacillus polymyxa (Prazmowski) Migula (Fam. Bacillaceae). It has a potency of not less than 6,000 polymyxin B units per mg, calculated on an anhydrous basis.

The structural formulae are:

Bacitracin zinc is the zinc salt of bacitracin, a mixture of related cyclic polypeptides (mainly bacitracin A) produced by the growth of an organism of the licheniformis group of Bacillus subtilis var Tracy. It has a potency of not less than 40 bacitracin units per mg.

The structural formula is:

Hydrocortisone, 11β, 17, 21-trihydroxypregn-4-ene-3, 20-dione, is an anti-inflammatory hormone.

Its structural formula is: